Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 24 August 2020Accepted: 28 January 2021Published online: 08 April 2021Keywordslinear quadratic problem, overtaking optimal control, controllabilityAMS Subject Headings49J15, 49N10, 93B05Publication DataISSN (print): 0363-0129ISSN (online): 1095-7138Publisher: Society for ...

INTRODUCTION Benign paroxysmal positional vertigo (BPPV) is the most common cause of peripheral vestibular dysfunction. OBJECTIVE To assess whether the performance of the Dix-Hallpike maneuver after the Epley positioning maneuver has prognostic value in the evolution of unilateral ductolithiasis of posterior semicircular canal. METHODS A prospective cohort study in monitored patients at oto...

In this report, a brief history of the Valsalva (Valsalva-Weber) maneuver is outlined, followed by an explanation on the use of this approach for the evaluation of cardiac autonomic function based on underlying heart rate changes. The most important methodological and interpretative aspects of the Valsalva-Weber maneuver are critically updated, and some guidelines are established for simple app...

In this paper we describe the control logic that enabled a small-scale unmanned helicopter to execute a completely automatic aerobatic maneuver. The logic consists of steady-state trim trajectory controllers, used prior to, and upon the exit from the maneuver; and a maneuver logic inspired by human pilot strategies. Extensive flight tests with this control logic demonstrated smooth entry into t...

Introduction: Heimlich maneuver is one of the first-aid maneuvers administered when the upper airway obstruction symptoms develop. Case Report: A 33-year-old female patient presented with sternum fracture due to the Heimlich maneuver. Conclusion: Sternal fracture can be developed after the Heimlich maneuver. In addition, the importance of bedside ultrasonography in the detection of fractures in...

Road traffic accidents consistently show a significant over-representation for young, novice and particularly male drivers. This research examines the prefrontal cortex activation of young drivers and the changes in activation associated with manipulations of mental workload and inhibitory control. It also considers the explanation that a lack of prefrontal cortex maturation is a contributing f...

Abstract Maneuver detection and estimation is deemed crucial for maintaining catalogs of Resident Space Objects (RSOs) as it helps to avoid sets duplicated objects track correlation issues. In fact, maneuvers, along with launches break-up events, are the main source potential new object detections during RSOs cataloging activities. For continuous reliable provision Situational Awareness (SSA) T...

PURPOSE The aim of our study was to assess the hemodynamic change of liver during the Valsalva maneuver using Doppler ultrasonography. METHODS Thirty healthy men volunteers were enrolled (mean age, 25.5±3.64 years). The diameter, minimal and maximal velocities, and volume flow of intrahepatic inferior vena cava (IVC), middle hepatic vein (MHV), and right main portal vein (RMPV) was measured d...